Hydrographic and Impairment Statistics Database: WICA

Water Resource Division, National Park Service: D. Tucker and J. Ling. 2023. Hydrographic and Impairment Statistics Database: WICA. National Park Service

Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government Performance and Results Act of 1993 (GPRA). One water resources management goal established by the Department of the Interior under GRPA requires NPS to track the percent of its managed surface waters that are meeting Clean Water Act (CWA) water quality standards. This goal requires an accurate inventory that spatially quantifies the surface water hydrography that each bureau manages and a procedure to determine and track which waterbodies are or are not meeting water quality standards as outlined by Section 303(d) of the CWA. This project helps meet this DOI GRPA goal by inventorying and monitoring in a geographic information system for the NPS: (1) CWA 303(d) quality impaired waters and causes; and (2) hydrographic statistics based on the United States Geological Survey (USGS) National Hydrography Dataset (NHD). Hydrographic and 303(d) impairment statistics were evaluated based on a combination of 1:24,000 (NHD) and finer scale data (frequently provided by state GIS layers).

Type
Geospatial Dataset
Authors
Water Resource Division, National Park Service: D. Tucker and J. Ling
Date of Issue
2023-10-06
Publisher
National Park Service
Units
AQSY , WICA
Keywords
303(d), 303d, Boundaries, Boundary, Canal, Clean Water Act, CWA, Designated Uses, Ditch, Geoscientificinformation, HIS, Hydrographic and Impairment Statistics, Hydrographic Statistics, Hydrography, Impaired Waters, Impairment, Impairment Statistics, Inland Waters, Inlandwaters, LAKE, Marsh, National Hydrography Dataset, NHD, Ocean, Oceans, Pond, Regulatory, Reservoir, Resource Management, River, Sea, Seep, Shoreline, Spring, Statistics, Stream, Swamp, TMDL, Total Maximum Daily Load, Water, Waterfall, Wetlands, WICA, Wind Cave National Park

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